Improvement in coal and rock cutting machines



Patented September 16, 18473.

lllllllllll nemrag .NITED STATES PATENT OFFICE.

HoRAcEE. BROWN, 0E INDIANAPOLIS, INDIANA.

IMPROVEMENT |N' co'An AND noci( CUTTING MACHINES.

Specification forming part of ,Letters Patent No. 142,896, dated September 16, 1873 application filed' 'July 30, 1873. f

To all whom it mag/concern:

` Beit known that L'HORACE F. BROWN, of indianapolis, Marion count-y, State of Indi'-y ana, have invented an Improved KCoul and .Rock Cutting Machinefof which the following is-a specification:

' ing, the said ring being carried by frame-Work so constructed and so adapted to ways that it can be turned laterally, or turned in two directions, one at fright angles to the other, and thus be made@ penetrate and cnt channels in the rock y, (shown by dotted lines in Fig. 1,) all as fully described-hereafter. A

A is the revolving cutting-ring, to the per `riphery of which the cutters are secured in' the manner described hereafter l and this ring is carried by an' arm, B, projectingfrom and secured to an annular frame, D, ,which is so fitted at a to anrannular bed, E, that it can be turned freely on, but can' have no other movement independently of, the said bed.l ,The cutting-ringAis supported by small ant,

friction rollers e e, carried by the arm B, which 1s contained` Within the cutter L ring, except where it is connected with the frame, and isi- A guided in its circular course by aH number of horizontal ant-friction'wheels, fd f, also carried by the arm B. 0n theY under side of the cutting-ringA is an annular rack, to the teeth of which is adapted a bevel-pinion, E', on a shaft, F, which has one bearing in the frame D,'audthe 'other in a projection on the arm B, as shown in the vertical section, Fig. 2, the Said shaftF deriving its motionfroma shaft, G, which isA driven by a steam or 'air engine carried bythe saidframe -DL- ,Teeth are formed inthe exterior of the annularbed E, and to these teeth are adaptedthose of a pinion, H, which has its bearings on the frame.

AvD, so-that-on turning .the shaft the said fra-me,

andwith it the arm andl its cutting-ring,

may be turned on the bed E to any angle desired. The annular bed D has parallel e grooves, adapted to ways h h on'a slide, I, part of which isillustrated in the'detached -plan view, Fig. 3, and this slide has grooves adaptedeto ways yi i ou the frame J, which ,is supported in the manner described hereafter." A vertical shaft, K, coneentricwith'the annular frame D and annular bed E, is arranged to turn Yin a hanger, j, suspended from-the said frame, and derives itsl motion through I,the intersection of bevel gearing from the driving-shaft G. This vertical shaft is fur; nished with a worm,k,'adapted to the teeth of a pinion, ,on a shaft, m, which has its bearings in the'bed E, the shaft, being fur-` nished with pinions n In, adaptedto racks p ou the slide I, and also to racks p .on frames K', Awhich have ways h,'coinciding with the^ waysh'on the slide I, under the circumstancesdescribed'hereafter. The pinions lean be moved -to and'fro` on the shaft m by means of a rod,

- worm-k. When the pinion -isiu gear with the worm, the annular bed E, frame D, and cutting-ring A will be traversed Sin the direction ing its bearingsgin .the be d E,'is-furnished with a pinion,`which can, be'finoved ina-nd out of gear with the worm'k by means of a rod, t, `the shaft having another pinion, o, gearing into a rack', 1r, on one of the .frames J, so that, when the shaft L is drivenby the worm 7c, 'the annular bed E, and allthe vappliances which it supports, will be traversed in the dinecessarily carried in the bed along the-ways on sills lll, one of which is s hown in the transscale, each-,end ofeach sill being provided.

the sill, andarranged in the mannertoo clearly illustrated in Fig. 4' to needexplanation.

' Byturnin'g -the setscrews, the frames J J and KK may be raised orlowered at pleasure -and adjusted to different inclinations,while ,the arms P P, the outer ends of which rest 'on the ground, serve 'to steady thescrews under all circumstances.

to the peripheryof the cutting-ring A; but for" most purposes-I prefer the cutter lllusq', and thas put in and out of gear with the of the-arroiv,1 `ig. 2.- Another shaft, L, havrection of the arrow, Fig. 1, the slide I being t' i. The frames J J -and K K are-'supported with a screw,N, and. the lower end of each Y screw being connected to the outer end of one -of-tho-arms- P,-thetwoaras-being4iinged to Y verse section, Fjg. 4, drawnto anenlarged Different styles of 4cutters may be secured trated in the enlarged perspective view, Fig. 5. rlhis 4*consists of a steel block, C, having three cutting edges, w', the next cutter having but two cutting edges so arranged as to i remove the material left y the spaces be` tween the three cnttin g edges of the cutter G. In addition to these cutting -edges, each block cis furnished with two side cutters, aw, 4secured in a manner 'clearly explained by the drawing. i

' Another form of cutter is illnstrated'in theu most of which are inclined so as to give clearance at the sides.

The' cutter illustrated in Fig. 5 may also be made reversible. Y

In Fig; 1,-the dotted line y represents the face of the bed ot coal, marbleror other rock' into which'ahannel has to be cut by the above-described apparatus.' f i g In the rst instance, the mechanism is's'o adjusted that thewaysof theslide' I shall co-- incidejwiththose of the-.ames K', the slide I occupying a portionof ythe ways ofthe said. frames- K K' so 'far from the face y ofthe rock that the cutters ofthe ring A will just p -fw and'interme'diate channels, and attached touch the; saine. The cutting-ring is then caused to revolve at the same time. The an nular bed, with all its' appliances, is caused to traverse in the'dire'ction'of the arrow until thecutting-ring has penetrated the rock to' the extent, or about the extent, shown in Fig. 1, when the movementof the cutting-ring in the direction'pointed-out is'- arrested, after which the shaft L is caused'to revolve, and. consequently lthe annular bed, its annular -frame D, and cutting-ring, together withv the' slide I, arecaused to traverse the ways i Lof the frames J J in 'the direction of the arrow,

Fig. ,1, while the cutting-ring revolves; the',

resultof which operationwill be the cutting -of a deep channel in the rock,'the direction of this channel depending upon the adjustment of the 'frames J J and'K Kl.

f It. will be occasionally necessarytoturn' the annular frame 'on' its bedan" operation 'easily accomplished 'by operating the shaft of thepinion H. If this be done while the annular bed-isstationajrand the cutting-ring is in operation, the res'ult will be the gradual with drawal of the said cuttiu g-ring from the rock. and the gradual termination fofthe channel cut therein. i

To facilitate the entrance of thecutter into ner described.

'P P, the whole being constructs the rock, and its withdrawal 'from the same,

and to enable thecutters to work wellinto the corners-at the ends of the channel, I propose in most cases to so arrange the ring and its driving mechanism, and the cutters, thatthe apparatus can he operated by areverse as well as by'a forward movement pf the said ring. The only material change required `iu the operating mechanismV will be to provide the'shaft Gwith two bevel-pinions at opposite sidesof the vpinion on the shaft K, so ar*- ranged that either ef them may be thrown` in and out of gear with the latter. (Seb 'dotted lines in Fig. 2.)

*"V'Inasmuch as the arm"B,which carriesthe cutter-ring', is contained almost entirely withinA thering,'thev latter can be inserted to almost its entire .extent in the narrowopening which it cuts, and such opening may'therefore be cut much deeperthan .by ordinary machines,

in which narrow cutters cannot penetrate onehalf `their diameter.

I'claim as my invention 1. A channeling-machinejn which'a cutterring, A, is carried by an' arm, B, contained within said ring, except at the point where it joins the frame, as set forth. `2. The cutter-ring A and its carrying-arm B, in combination with'an. annular fralne adjustable upona bed, E, substantially as 'set forth. 4 j.

3. The cutter'- head A,n ccmbinatiou-with '-the arm B and its anti-frictionrollers e andf.

4 4-4`."The combination of the cutterhead A andits-annular rack with the .arm B and `piu' ion-E' o n the shaft F; adapted v4to baringson the said arm 'and annularbed' D.

5. The cutter-block C, having cutting-edges to the cutter-ring, as setforth. y "'6. The combination of the annular bed E -and its annular frame D, carrying the .cuttingring A, with ways on4 whichthe said bed can be -traversed in two directions, at right angles to each other, as specified.

7. The combinaties 0f4 he slide Il, adapted to waysi. 'i on the frames J J, and having. ways y h h for the bed E, with` the frames K K',hav-

ing Vviiays h', correspondingy with those of the.

- 8. The combination of the centralshaftKand its worm k, carried by'. the frame D, the racks on the frames J and'K'fK, and within-described' gearing or its equivalent, 4which is carried by the bed E for traversing the latter, in the man-- I `9. The sillM, its set-screws. N N and arms d substantially ,as set forth, for the support andadjustment of the frames J J and K( K'.

In testimony -whereof I have signed 4my ame -to this specification 'in the presence of two subscribing witnesses.

' l HORACE F. BROWN;

*,Witnesses': l

D.'R. BROWN, W. H. ZIMMERMAN. 

